Help !!

Fay

I regularly use Ovia and it’s usually good with tracking when my next period will be

Yesterday was meant to be the start of a 5 day period for me, but it still hasn’t come, and I’ve done a pregnancy test today and it was negative?

Can anyone tell me what’s going on, or if this has happened to them?

My period are usually every 20 or 23 days at most... 😩